MESON Chess Problem Database
Problem Display
PID: 251656 (3B2b1/4n2q/1P4p1/3B2R1/3kNNQ1/1P1p4/3K2p1/4R3 w - - 0 1)
Rozijn, DA
Probleemblad, 1982
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Be6
- 2.Sxe6#
- 1...Sf5
- 2.Bf6#
- 1...Sc8
- 2.Bf6#
- 1...g1Q
- 2.Qxg1#
- 1...g1S
- 2.Qxg1#
- 1...g1B
- 2.Qxg1#
- 1...g1R
- 2.Qxg1#
- 1...Be6
- Tries
- 1.Sc3?
- threat
- 2.Sxd3#
- 2.Se6#
- 1...Bxd5
- 2.Se6#
- 1...Sxd5
- 2.Se6#
- 1...g1Q
- 2.Se6#
- 2.Qxg1#
- 1...g1R
- 2.Se6#
- 2.Qxg1#
- 1...Qh2
- 2.Se6#
- 1...Qh3
- 2.Se6#
- 1...Qh4
- 2.Se6#
- 1...Qh5
- 2.Se6#
- 1...Qf7
- 2.Se6#
- 1...Be6
- 2.Sxe6#
- 1...Kc5!
- threat
- 1.Sf6?
- threat
- 2.Sxd3#
- 2.Se6#
- 1...Bxd5
- 2.Se6#
- 1...Sxd5
- 2.Se6#
- 1...g1Q
- 2.Se6#
- 2.Qxg1#
- 1...g1R
- 2.Se6#
- 2.Qxg1#
- 1...Qh2
- 2.Se6#
- 1...Qh3
- 2.Se6#
- 1...Qh4
- 2.Se6#
- 1...Qh5
- 2.Se6#
- 1...Be6
- 2.Sxe6#
- 1...Kc5!
- threat
- 1.Bxe7?
- threat
- 2.Bc5#
- 2.Bf6#
- 1...Qf7
- 2.Bc5#
- 1...Qg7
- 2.Bc5#
- 1...Qh8
- 2.Bc5#
- 1...Qxe7!
- threat
- 1.Rc1?
- threat
- 2.Rc4#
- 1...Sf5
- 2.Bf6#
- 1...Bxd5!
- threat
- 1.Qe2?
- threat
- 2.Qxd3#
- 2.Qf2#
- 2.Qe3#
- 1...Sxd5
- 2.Qxd3#
- 1...dxe2
- 2.Sxe2#
- 1...Sf5
- 2.Bf6#
- 1...g1Q
- 2.Qxd3#
- 1...g1B
- 2.Qxd3#
- 1...Qh4
- 2.Qxd3#
- 2.Qe3#
- 1...Qh3!
- threat
- 1.Qf3?
- threat
- 2.Qf2#
- 2.Qxd3#
- 2.Qe3#
- 1...Sxd5
- 2.Qxd3#
- 1...Sf5
- 2.Bf6#
- 1...g1Q
- 2.Qxd3#
- 1...g1B
- 2.Qxd3#
- 1...Qh4
- 2.Qxd3#
- 2.Qe3#
- 1...Qh3!
- threat
- 1.Qh3?
- threat
- 2.Qxd3#
- 2.Qe3#
- 1...Sxd5
- 2.Qxd3#
- 1...Sf5
- 2.Bf6#
- 1...g1Q
- 2.Qxd3#
- 1...g1B
- 2.Qxd3#
- 1...Qxh3!
- threat
- 1.Qc8?
- threat
- 2.Qc3#
- 2.Qc4#
- 2.Qc5#
- 1...Bxd5
- 2.Qc3#
- 2.Qc5#
- 1...Sxd5
- 2.Qc4#
- 2.Qc5#
- 1...Sxc8
- 2.Bf6#
- 1...Sf5
- 2.Bf6#
- 2.Qc3#
- 1...Sc6!
- threat
- 1.Qg3?
- threat
- 2.Qf2#
- 2.Qxd3#
- 2.Qe3#
- 1...Sxd5
- 2.Qxd3#
- 1...Sf5
- 2.Bf6#
- 1...g1Q
- 2.Qxg1#
- 2.Qxd3#
- 1...g1B
- 2.Qxg1#
- 2.Qxd3#
- 1...Qh4
- 2.Qxd3#
- 2.Qe3#
- 1...Qh3!
- threat
- 1.b7?
- threat
- 2.Bb6#
- 1...Sf5
- 2.Bf6#
- 1...Sc8
- 2.Bf6#
- 1...Sxd5!
- threat
- 1.Sc3?
- Keys
- 1.Qd7!
- threat
- 2.Qa4#
- 1...Bxd5
- 2.Se6#
- 1...Sxd5
- 2.Bf6#
- 1...Sf5
- 2.Bf6#
- 1...Sc6
- 2.Bf7#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- B(g);N_GUARD::S(E),XB(g)
- S(e);OGATE::B(J)
- P(a);OGATE::QAB(F),XQ(a)
- P(a);OGATE::QAB(F),XS(a)
- P(a);OGATE::QAB(F),XB(a)
- P(a);OGATE::QAB(F),XR(a)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(g);XB(G)::QAR(F)+S(E),DCHECK
- S(e);XB(G)::QAR(F)+S(E),DCHECK
- Q(f);::QAR(F)+S(E),DCHECK
- B(g);::QAR(F)+S(E),DCHECK,XB(g)
- Refutation
- K(c);S_FLIGHT
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(g);XB(G)::QAR(F)+S(E),DCHECK
- S(e);XB(G)::QAR(F)+S(E),DCHECK
- Q(f);::QAR(F)+S(E),DCHECK
- B(g);::QAR(F)+S(E),DCHECK,XB(g)
- Refutation
- K(c);S_FLIGHT
- Try
- B(J);XS(e)
- Threat
- DUALS(2)
- Vars
- Q(f);::B(J)
- Refutation
- Q(f);XB(J)
- Try
- R(A);
- Threat
- R1(A)
- Vars
- S(e);OGATE::B(J)
- Refutation
- B(g);XB(G)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- S(e);XB(G)::QAR1(F),XP(b)
- P(b);XQ(F)::S(E),XP(b)
- S(e);OGATE::B(J)
- P(a);::QAR1(F),XP(b)
- Refutation
- Q(f);
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- S(e);XB(G)::QAR1(F),XP(b)
- S(e);OGATE::B(J)
- P(a);::QAR1(F),XP(b)
- Refutation
- Q(f);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(e);XB(G)::QAR1(F),XP(b)
- S(e);OGATE::B(J)
- P(a);::QAR1(F),XP(b)
- Refutation
- Q(f);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- S(e);OGATE,XQ(F)::B(J)
- Refutation
- S(e);
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- S(e);XB(G)::QAR1(F),XP(b)
- S(e);OGATE::B(J)
- Refutation
- Q(f);
- Try
- P(I);
- Threat
- B(J)
- Vars
- S(e);OGATE::B(J)
- Refutation
- S(e);XB(G)
- Try
- Actual
- Q(F);
- Threat
- QAR(F)
- Vars
- B(g);N_GUARD,P_SPINB(g),XB(G)::S(E)
- S(e);OGATE,P_SPINS(e),XB(G)::B(J)
- S(e);OGATE::B(J)
- S(e);N_GUARD::QAR(F)+B(G)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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